 //**************************************************************
 //  CricleStats.java      Author:20172323wyh
 //  
 //  Demonstrates the formatting of decimal values using the 
 //  DecimalFormat class.
 //**************************************************************

 import java.util.Scanner;
 import java.text.DecimalFormat;

 public class CircleStats
 {
    //-------------------------------------------------------------
    // Calculates the area and circumference of a circle given its
    // radius.
    //-------------------------------------------------------------
    public static void main(String[] args)
    {
       int radius;
       double area, circumference;

       Scanner scan = new Scanner(System.in);

       System.out.print("Enter the circle's radius: ");
       radius = scan.nextInt();

       area = Math.PI * Math.pow(radius, 2);
       circumference = 2 * Math.PI * radius;

       // Round the output to the three decimal places
       DecimalFormat fmt = new DecimalFormat("0.###");

       System.out.println("The circle's area: " + fmt.format(area));
       System.out.println("The circle's circumference: " + fmt.format(circumference));
    }
 }
